| Roadrunner Fabrication Bending, Welding | Denver, CO | BendingWelding | - |
| BDB Fabrication Welding | Aurora, CO | Welding | - |
| Broomfield Sheet Metal Inc Welding, Finishing | Lafayette, CO | WeldingFinishing | - |
| D & G Manufacturing LLC Milling, Turning, Welding | Aurora, CO | MillingTurningWelding | - |
| Final Frontier Manufacturing Milling, Turning, Finishing · AS9100 | Arvada, CO | MillingTurningFinishing | AS9100 |
| Golden Machining Solutions Inc Milling, Turning, Finishing · ISO 9001 | Arvada, CO | MillingTurningFinishing | ISO 9001 |
| Hirsh Precision Products, Inc Milling, Turning, Assembly · AS9100, ITAR, ISO 13485 | Frederick, CO | MillingTurningAssembly | AS9100, ITAR, ISO 13485 |
| Mace Manufacturing Milling, Welding · ISO 9001, AS9100 | Englewood, CO | MillingWelding | ISO 9001, AS9100 |
| Majestic Metals by Fathom Manufacturing Milling, Turning, Bending, Laser, Welding, Waterjet, EDM, Casting, Metal AM · ISO 9001, AS9100, ITAR, ISO 13485 | Denver, CO | MillingTurningBendingLaserWeldingWaterjetEDMCastingMetal AM | ISO 9001, AS9100, ITAR, ISO 13485 |
| McCallin Steel Storage Systems, Inc Milling, Punching, Welding, Finishing | Commerce City, CO | MillingPunchingWeldingFinishing | - |
| Monson Manufacturing Milling · ISO 9001, AS9100, ITAR | Colorado Springs, CO | Milling | ISO 9001, AS9100, ITAR |
| Oakes Manufacturing LLC Milling, Turning, Assembly · ISO 9001 | Fort Collins, CO | MillingTurningAssembly | ISO 9001 |
| Peak Custom Fabrication Bending, Welding | Colorado Springs, CO | BendingWelding | - |
| Precise Cast Prototypes & Engineering Inc Milling, Casting | Commerce City, CO | MillingCasting | - |
| Precision Machined Products, LLC Milling, Turning, EDM, Grinding, Assembly · ISO 9001 | Fort Collins, CO | MillingTurningEDMGrindingAssembly | ISO 9001 |
| Prototype Casting Inc Milling, Turning, Welding, Casting | Commerce City, CO | MillingTurningWeldingCasting | - |
| Rocky Mountain Waterjet, LLC Laser, Waterjet, Bending, Welding, Finishing | Greeley, CO | LaserWaterjetBendingWeldingFinishing | - |
| Salco Inc Milling, Turning, Swiss, Welding, Assembly · ISO 9001 | Arvada, CO | MillingTurningSwissWeldingAssembly | ISO 9001 |
| Scherer Metals - 1299 E. 58th Avenue, Denver Bending, Welding | Denver, CO | BendingWelding | - |
| Steelhead Composites, Inc Welding · ISO 9001, AS9100 | Golden, CO | Welding | ISO 9001, AS9100 |
| Superior Metal Products Inc Milling, Turning, Grinding · ISO 9001 | Louviers, CO | MillingTurningGrinding | ISO 9001 |
| Tag Team Manufacturing Turning, Welding, Finishing · ISO 9001 | Parker, CO | TurningWeldingFinishing | ISO 9001 |
| Metalmasters Milling, Turning, Bending, Welding, Finishing | Brighton, CO | MillingTurningBendingWeldingFinishing | - |
| Core-X LLC Laser, Welding | Commerce City, CO | LaserWelding | - |
| Maria Custom Sheet Metal Bending, Welding | Englewood, CO | BendingWelding | - |
| Praesidm Milling, Turning · ISO 9001, AS9100 | Evergreen, CO | MillingTurning | ISO 9001, AS9100 |
| Topocut, LLC Milling, Laser, Bending, Finishing | Berthoud, CO | MillingLaserBendingFinishing | - |
| Weld Craft Welding | Loveland, CO | Welding | - |
| Xymat Milling, Turning, Bending, Laser, Welding, Waterjet, EDM, Metal AM · ISO 9001, AS9100 | Colorado Springs, CO | MillingTurningBendingLaserWeldingWaterjetEDMMetal AM | ISO 9001, AS9100 |